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Securities - Narrative (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |  |
Proceeds from sales of securities available-for-sale | $ 0 | $ 0 | $ 16,515,000 | $ 24,563,000 |
Realized gains |  |  | 35,000 |  |
Realized losses |  |  | 1,000 | 1,000 |
Proceeds from available-for-sale securities redeemed | 5,000,000 | $ 0 | 16,000,000 |  |
Called debt security, realized loss |  |  |  | $ 1,000 |
Collateral Pledged [Member] |  |  |  |  |
Loans and Leases Receivable Disclosure [Line Items] |  |  |  |  |
Restricted securities | $ 96,400,000 |  | $ 96,400,000 |  | $ 103,700,000

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- Definition Amount of realized gain on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27357-111563 + Details
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